Last Updated：2025/12/04
The Delannoy numbers count lattice paths from the southwest corner to the northeast corner when steps can be taken northeast, north, or east.
See correct answer
The Delannoy numbers count lattice paths from the southwest corner to the northeast corner when steps can be taken northeast, north, or east.
音声機能が動作しない場合はこちらをご確認ください
Edit Histories（0）
